Improvement in the methods of fastening blocks in triple chains



P. KEN u R 1 c K.

Methods of Fastening Blocks in Tripl e Chains. N0. 142,110.PatentedAugust26J873;

' W17286$$ [WWPTIZOT' MWMMQ UNITED STATES PATENT QIEFICE PETER KENDRIOK,OF TRENTON, NEW JERSEY.

IMPROVEMENT IN THE METHODS OF FASTENING BLOCKS IN TRIPLE CHAINS.

Specification forming part of Letters Patent No. 142,110, dated August26, 1873; application filed May 29, 1873.

To all whom it may concern:

Be it known that I, PETER KENDRIOK, of the city of Trenton, county ofMercer, State of New Jersey, have invented a new and Improved Method ofFastening Blocks in Triple Chain, of which the following is aspecification:

Triple chain is manufactured and used principally for coal mines; andconsists of a series of thin chains of long and short links placedparallel to each other, and kept in position by a block of wood beingdriven through the long links and fastened by means of ordinary stubs orwrought-iron nails driven in outer edge of said block.

Great difficulty is experienced in the use of this chain from the factthat, by constant working and shrinkage of these wood blocks, the stubsor wrought-iron nails become loosened and drop out, by which means thereis nothing to prevent the blocks from working out, thus rendering thechain useless until repaired, occasioning no little loss of time andexpense. I propose to surmount this difficulty, and claim, as animprovement, my invention, which consists of an ordinary iron or othermetal bolt with washers, said bolt to pass through the block and rivetedover the washers, as represented in the accompanying drawing. I Figure 1represents a full Viewof a section of the chain; a a a a represent theblock of wood inserted in the chain, and the dotted parallel lines A Athrough the center of the figure represent the bolt through the block,which is riveted over washers B B. Fig. 2 represents a side-view sectionof the chain b b, being the end of the block, and O the washer, rivetedon the end of the bolt, showing the manner in which the block is held inplace. It will be evident, from the foregoing description andaccompanying drawing, that, by the application of my invention to thischain, it is impossible for the block to work out, as the bolt andwashers fasten it effectually, and the chain will work much easier, asby using the stubs or iron-nails the block of woodris required to bewell seasoned, and made larger to be driven in perfectly tight, whichhas a tendency to make the chain too stiff.

Having thus described my invention, which I claim as new, I desire tosecure by Letters Patent- An iron or other metal bolt to pass throughthe block, and riveted over washers on the ends to secure said block,substantially as specified.

' PETER KENDRIGK.

Witnesses GEORGE F. BUTTERWORTH, EDWARD S. PULLEN.

